1_Sheep terms 1

Description

Definition for LC Ag Science Sheep
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Flashcards by dafyddandrewbrad, updated more than 1 year ago More Less
Agricultural Science
Created by Agricultural Science over 8 years ago
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Resource summary

Question Answer
Steaming Up Feeding twin bearing ews 0.1kg of concentrates per day 7 weeks from lambing building up to 0.7kg at lambing. Prevents twin lamb disease.
Flushing The process by which ewes are moved from a low plane of nutrition to a high plane of nutrition prior to mating
Fostering Taking one lamb from a set of triplets and putting it on a ewe with a single lamb.
Length of oestrous cycle 17 days
Duration of oestrous 36 hours
Gestation period 149 days
Pheromones Chemical substances that the ram produces in order to attract a female for mating
Ram effect Suddenly introducing a ram to produce pheromones to encourage ovulation six weeks before normal
Short Day Breeders Sheep are polyoestrus meaning they come into heat a few times during a certain time a year. As days get shorter increased melatonin stimulates pituitary gland to produce fsh
Weight Of Lamb At Birth 3-5kg
Features Of Mountain And Hill Farming •Ewe and lamb mortality rates can be high •Ewes generally only have one lamb •Low production targets
Features of lowland Farming •High production targets •Lambing indoors reduces ewe and lamb mortality •more ewes give birth to twins and triplets
Dipping
Criteria of a Replacement a ewe •Age of the ewe •Health of the ewe •BCS of the ewe •Good conformation •good mouth and jaw •good feet and legs
Selction criteria of a ram •The breed of the ram •Age of the ram •Good conformation •Good mouth and jaw •Good BCS
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